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Finding the Fourth Proportional to 113,749.80, 170,765.10 and 71,629.80

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Solution

The fourth proportional to 113,749.80, 170,765.10 and 71,629.80 is: 107,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,749.80 : 170,765.10 = 71,629.80 : x
  2. Step 2: Convert to fraction form
    113,749.80/170,765.10 = 71,629.80/x
  3. Step 3: Cross multiply
    113,749.80x = 170,765.10 × 71,629.80
  4. Step 4: Simplify right side
    113,749.80x = 12,231,869,959.98
  5. Step 5: Solve for x
    x = 12,231,869,959.98/113,749.80
  6. Step 6: Final answer
    x = 107,533.11

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